Speed aoveenoe



, l 2` sheets-sheen 1. W. H. VON MENGERINGrI-UXUSENv (No Modal.)

SPEED GOVERNOR.

Pateted June-13 .i l mm I mkv/@l (No Model.) y 2 Sheets-sheet 2.

w. E. voN MENGEEINGEAUSEN. SPEED GoVEEEoE..v

"N0.49Q,242. Patentedhne 13 1893; 1

UNITED ST TES PATENT OFFICE.

WILLIAM H. VON MENGERINGHAUSEN, OF YORK, PENNSYLVANIA.

SPEED-GOVERNOR.

SPECIFICATION forming part of Letters Patent No. 499,242, dated J' une 13, 1893.

Application filed September, 1892. Serial No. 446,710. (Nomodel.)

To all whom it may concern:

Be it known that I, WILLIAM H. voN MEN- GEEINGHAUSEN, a citizen of the United States, residing at York, in the county of York and State of Pennsylvania, have invented certain new and useful Improvements in Speed-Governors; andIdo hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the. art to which it appertains to make and use the same. 'y

My invention relates to improvements in speed governors, of that class whereby the travel of the valve Ais increased or decreased by shifting eccentrics mounted upon the main shaft or upon some other shaft movingsynchronously with the said shaft; and it consists of certain novel features hereinafter described and claimed.

Reference is had to the accompanying drawings, in which similar letters refer to corresponding parts throughout the several views. p f v Figure l represents a section of the shaft, andaside elevation of the shifting eccentrics,

and mechanism for operating the same moun ted on the said shaft. Fig. 2 represents a section of the device shown'in Fig. l, alongtheline the shaft being'leftin elevation, and the view being taken from the left, as indicated by the arrows. Fig. 3 represents a similar view to that shown in Fig. l, except that it is seen from the opposite side of the governor. Fig. 4 represents aperspective .view of the xed and shifting eccentrics, and

illustrates the method of mounting them on the shaft. Fig. 5 represents a diagram illustrative of the operation of the device.

, A represents the shaft, which carries the fixed hub B, with lugs b, and eccentric portion C attached to or integral therewith, but preferably cast in one with the said hubl The central portion of the said hub is cylindrical as shown at B', and on this cylindrical portion the fly wheel is loosely mounted.

D represents a hood adapted to engage the eccentric C, which revolves freely therein. This eccentric is held between the plate D' forming the back of the hood, and the ring F which is screwed or otherwise attached to the hood, and has an overhanging lip as shown in Fig. 4.

The plate D is perforated at D2 as shown, so as to allow the hood to have a play about the shaft A. To the back of this hood, and preferably cast integral therewith, is the shifting eccentric E, which is in the form of ahollow ring set eccentric to, and inclosing the shaft.

The hood D is provided with a lug d for the purposes hereinafter to b e describedf G represents the iiy wheel for operating the governor, and it should preferably be inde' pendent of the fly wheel or belt wheel of the engine. This fly wheel consists of two portions bolted together at g', and provided with bosses g perforated as shown. The spokes G of this wheel terminate in a sleeve Gf2 free to v g2 as shown; and links I are connected to the said arms H at h2, and the hub B at b.

The hood D is connected at d by means of the strap M to the iiy wheel, to which it is pivoted atm as shown.

It will be obvious that as the shaft revolves,

the centrifugal motion will'tend to throw the weights K outward, and the arms H being bound to the hub B and the shaft A by the straps I, will push the iiy wheel backward in the opposite direction. The ly Wheel will drag the strap'M and hood D with the eccentric E through an angular distance commensurate with the distance through which the weight is thrown, which latter distance Will dependupon the speed of the shaft A, and the position of the Weights K on the arms H. By examiningFig. 5, where o. represents the center of the shaft A, c the center of the eccentric C, and e the center of the eccentric E, when the weights are well in, it will be seen that if the center of the eccentric E be thrown to the position e', the throw of the eccentric rod R will be decreased from the length of a line represented by a--e, tothe length of a line represented by a--e, and for any intermediate point the length of the throw of the eccentric E, and of the rod R LIA connected to the valve, would vary between these two limits.

I am aware that numerous centrifugal governors automatically actuating shifting eccentrics are now in use, and that numerous patents have been granted upon devices somewhat analogous to mine, and I do not claim the broad idea, but

What I do claim, and desire to secure by Letters Patent of the United States, is-

1. In a speed governor of the character described, the combination with a shaft and a hub keyed thereon, of a fixed eccentric rigidly attached to said hub, a fly wheel journaled on said hub, Weighted arms connecting said fly wheel and said hub, a hood revolubly mounted on said fixed eccentric, a hollow ring rigidly attached to said hood eccentrically thereto, mechanism connecting said hollowA ring and the valve, and a strap connecting said hollow ring and said hood to the fly wheel, substantially as and for the purposes described.

2. In a speed governor of the character de scribed, the combination with a shaft and a hub keyed thereon having lugs projecting therefrom; of a fixed eccentric integral with or rigidly attached to the end of said hub opposite to said lugs; a Iiy wheel `journaled on said hub between said'lugs and said eccentric; weighted arms connected to said lugs and to said fly wheel; a shifting eccentric revolubly connected to said fixed eccentric; a strap connecting said shifting eccentric to the fly Wheel; and mechanism connecting .said shifting eccentric with the valve, substantially as and for the purposes described.

3. In a speed governor ofthe character described, the combination with a shaft and a hub keyed thereon having lugs projecting therefrom; of a fixed eccentric integral with or rigidly attached to the end of said hub opposite to said lugs; a fly wheel journaled on said hub between said lugs and said eccentric; weighted arms connected to said lugs and said y wheel; a hood revolubly mounted over said fixed eccentric'and perforated as shown, a hollow shifting eccentric integral Vwith or rigidly attached to the back of said hood, a strap connecting said shifting eccentric with the iiy wheel, and mechanism connecting said shifting eccentric with the valve, substantially as and for the purposes described.

4. In a speed governor of the character described, the combination with a shaft and a hub keyed thereon having lugs projecting therefrom; of a ixed eccentric integral with or rigidly attached to the end of said hub opposite to said lugs; a Iiy wheel 'journaled on said hub between said lugs and said eccentric; weighted arms connected to said lugs and to said fiy wheel; a cup-shaped cylindrical hood with bottom plate perforated as shown revolubly mounted over said fixed eccentric, a ring with overhanging lip secured to the face of said hood, a hollow shifting eccentric integral with or rigidly attached to the back of said hood, a strap connecting said shifting eccentric with the ily wheel, and mechanism connecting said shifting eccentric with the valve, substantially as and for the purposes described.

In testimony whereof I affix my signature in presence of two witnesses.

WILLIAM II. VON MENGERINGIIAUSEN.

Witnesses:

WILLIAM I-I. OTTEMILLER, J oHN D. PORTER. 

